Chrysanthemum plant named ‘DLFSOLE2’

ABSTRACT

A new and distinct cultivar of Chrysanthemum plant named ‘DLFSOLE2’, characterized by its upright plant habit; vigorous growth habit; large dark green-colored leaves; uniform flowering habit; strong upright flowering stems typically grown as a single-stem (disbudded) cut flower; decorative-type inflorescences with bright yellow-colored ray florets; and relative resistance to Fusarium oxysporum f. sp. chrysanthemi and Puccinia horiana strain PhNL1.

Botanical designation: Chrysanthemum X morifolium.

Cultivar denomination: ‘DLFSOLE2’.

CROSS-REFERENCED TO CLOSELY-RELATED APPLICATIONS

Title: Varieties of Chrysanthemum Plants

Inventor/Applicant: Arie Gerard Post

Filed: Mar. 20, 2019

Ser. No.: 62/919,611

Inventor/Applicant hereby claim the benefit of this provisional U.S.Patent Application.

STATEMENT REGARDING PRIOR DISCLOSURES BY INVENTOR/APPLICANT & ASSIGNEE

A Columbian Plant Breeder's Rights application for the instant plant wasfiled by the Assignee, Deliflor Royalties B.V. of Maasdijk, TheNetherlands on Aug. 24, 2018, application number A182425. Foreignpriority is not claimed to this application.

The Inventor/Applicant and Assignee assert that no publications noradvertisements relating to sales, offers for sale or public distributionoccurred more than one year prior to the effective filing date of thisapplication. Any information about the claimed plant would have beenobtained from a direct or indirect disclosure from theInventor/Applicant and/or the Assignee. Inventor/Applicant and Assigneeclaim a prior art exemption under 35 U.S.C. 102(b)(1) for disclosureand/or sales prior to the filing date but less than one year prior tothe effective filing date.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar ofChrysanthemum plant, botanically known as Chrysanthemum x morifolium,typically grown as a cut flower Chrysanthemum and hereinafter referredto by the name ‘DLFSOLE2’.

The new Chrysanthemum plant is a product of a planned breeding programconducted by the Inventor in Maasdijk, The Netherlands. The objective ofthe breeding program is to create new cut flower Chrysanthemum plantswith numerous attractive inflorescences.

The new Chrysanthemum plant is a naturally-occurring whole plantmutation of Chrysanthemum x morifolium ‘Delisolemio’, not patented. Thenew Chrysanthemum plant was discovered and selected as a singleflowering plant from within a population of plants of ‘Delisolemio’ in acontrolled greenhouse environment in Maasdijk, The Netherlands inSeptember, 2015.

Asexual reproduction of the new Chrysanthemum plant by vegetativeterminal cuttings since September, 2016 in Maasdijk, The Netherlands,has shown that the unique features of this new Chrysanthemum plant arestable and reproduced true to type in successive generations of asexualreproduction.

SUMMARY OF THE INVENTION

Plants of the new Chrysanthemum have not been observed under allpossible combinations of environmental conditions and culturalpractices. The phenotype may vary somewhat with variations inenvironmental conditions such as temperature, daylength and lightintensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined tobe the unique characteristics of ‘DLFSOLE2’. These characteristics incombination distinguish ‘DLFSOLE2’ as a new and distinct Chrysanthemumplant:

-   -   1. Upright plant habit; vigorous growth habit.    -   2. Large dark green-colored leaves.    -   3. Uniform flowering habit.    -   4. Strong upright flowering stems typically grown as a        single-stem (disbudded) cut flower.    -   5. Decorative-type inflorescences with bright yellow-colored ray        florets.    -   6. Relatively resistant to Fusarium oxysporum f. sp.        chrysanthemi and Puccinia horiana strain PhNL1.

Plants of the new Chrysanthemum differ from plants of the mutationparent, ‘Delisolemio’, in ray floret color as plants of the newChrysanthemum have bright yellow-colored ray florets whereas plants of‘Delisolemio’ have greyed orange-colored ray florets.

Plants of the new Chrysanthemum can be compared to plants ofChrysanthemum X morifolium ‘Zembla Yellow’, disclosed in U.S. Plant Pat.No. 14,733. In side-by-side comparisons, plants of the new Chrysanthemumdiffer primarily from plants of ‘Zembla Yellow’ in ray floret color asray florets of plants of the new Chrysanthemum are brighter yellow incolor than ray florets of plants of ‘Zembla Yellow’. In addition, rayflorets of plants of the new Chrysanthemum are more incurved than rayflorets of plants of ‘Zembla Yellow’.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs illustrate the overall appearance of thenew Chrysanthemum plant showing the colors as true as it is reasonablypossible to obtain in colored reproductions of this type. The photographon the first sheet (FIG. 1 of 2) comprises a side perspective view of atypical flowering stem of ‘DLFSOLE2’ grown as a disbud-type cut flower.

The photograph on the second sheet (FIG. 2 of 2) is a close-up view oflower (top of the photographic sheet) and upper (bottom of thephotographic sheet) surfaces of typical inflorescences (left) and leaves(right).

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations andmeasurements describe plants grown during the winter in ground beds in aglass-covered greenhouse in Maasdijk, The Netherlands and under culturalpractices typical of commercial cut Chrysanthemum production. Plantswere initially given long day/short night treatments followed by shortday/long night treatments to induce flower initiation and development.During the production of the plants, day temperatures ranged from 18° C.to 25° C., night temperatures ranged from 2° C. to 20° C. and lightlevels averaged 8 klux. Plants were grown as single-stem disbud-typeplants and were nine weeks old when the photographs and the descriptionwere taken. In the following description, color references are made toThe Royal Horticultural Society Colour Chart, 2015 Edition, except wheregeneral terms of ordinary dictionary significance are used.

-   Botanical classification: Chrysanthemum X morifolium ‘DLFSOLE2’.-   Parentage: Naturally-occurring whole plant mutation of Chrysanthemum    x morifolium ‘Delisolemio’, not patented.-   Propagation:    -   -   Type.—Terminal vegetative cuttings.        -   Time to initiate roots, summer.—About six days at            temperatures about 24° C.        -   Time to initiate roots, winter.—About eight days at            temperatures about 22° C.        -   Time to produce a rooted young plant, summer.—About twelve            days at temperatures about 24° C.        -   Time to produce a rooted young plant, winter.—About two            weeks at temperatures about 22° C.        -   Root description.—Fine, fibrous; typically creamy white in            color, actual color of the roots is dependent on substrate            composition, water quality, fertilizers, substrate            temperature and physiological age of roots.        -   Rooting habit.—Freely branching, medium density.-   Plant description:    -   -   Plant and growth habit.—Herbaceous decorative-type cut            flower that is typically grown as a single stem disbud-type;            upright plant habit; vigorous growth habit and rapid growth            rate.        -   Plant height, soil level to top of foliar plane.—About 72.4            cm.        -   Plant height, soil level to top of inflorescence            plane.—About 75.8 cm.        -   Plant diameter.—About 26.5 cm.        -   Flowering stem length.—About 67.5 cm.        -   Flowering stem diameter.—About 7 mm.        -   Flowering stem internode length.—About 2.2 cm.        -   Flowering stem strength.—Strong.        -   Flowering stem aspect.—Erect.        -   Flowering stem texture and luster.—Densely pubescent;            slightly glossy.        -   Flowering stem color, developing.—Close to 144A.        -   Flowering stem color, developed.—Close to 146A and 146C.        -   Leaf description.—Arrangement: Alternate; simple. Length:            About 13 cm. Width: About 8.9 cm. Shape: Broadly ovate to            broadly oblong. Apex: Short apiculate to acute. Base:            Attenuate. Margin: Palmately lobed, coarsely crenate to            serrate; sinuses convergent and moderately deep. Texture and            luster, upper surface: Moderately pubescent, not rugose;            moderately velvety; slightly glossy. Texture and luster,            lower surface: Moderately pubescent, prominent venation;            slightly velvety; very slightly glossy. Venation pattern:            Pinnate, reticulate. Color: Developing leaves, upper            surface: Close to 139A. Developing leaves, lower surface:            Close to 147B. Fully developed leaves, upper surface:            Slightly darker than between 139A and N189A; venation, close            to 147B. Fully developed leaves, lower surface: Close to            147B; venation, close to 146B. Petioles: Length: About            2.4 cm. Diameter: About 2.5 mm by 3 mm. Strength: Moderately            strong. Texture and luster, upper and lower surfaces:            Moderately to densely pubescent; slightly glossy. Color,            upper surface: Close to 146B; edges, close to NN137A. Color,            lower surface: Close to 146B; edges, close to 137C.            Stipules: Quantity and appearance: Two leafy stipules,            opposite, at the petiole attachment to the stem. Length:            About 6 mm. Width: About 5 mm. Shape: Broadly ovate. Texture            and luster, upper surface: Moderately pubescent, not rugose;            moderately velvety; slightly glossy. Texture and luster,            lower surface: Moderately pubescent, prominent venation;            slightly velvety; very slightly glossy. Color, upper            surface: Slightly darker than between 139A and N189A. Color,            lower surface: Close to 147B.-   Inflorescence description:    -   -   Appearance.—Decorative uncurved inflorescence form with            oblanceolate-shaped ray florets and tubular disc florets            (disc florets are inconspicuous); inflorescences borne            perpendicular to peduncles and face mostly upright; ray and            disc florets develop acropetally on a capitulum.        -   Fragrance.—Faintly fragrant; typical of Chrysanthemums.        -   Flowering response.—Under natural conditions, plant flower            in the autumn/winter in the Northern Hemisphere; at other            times of the year, inflorescence initiation and development            can be induced under short day/long night conditions (at            least 13.5 hours of darkness); uniform flowering habit and            short response time, plants exposed to two weeks of long            day/short night conditions after planting followed by            photoinductive short day/long night conditions flower about            55 days later when grown as a disbud-type.        -   Postproduction longevity.—Good postproduction longevity; in            an interior environment, inflorescences and foliage will            maintain good color and substance for about two weeks;            inflorescences persistent.        -   Quantity of inflorescences.—Grown as a disbud-type, all            lateral inflorescences are physically removed and only the            terminal inflorescence is allowed to develop; if grown as a            spray-type, then typically about 18 inflorescences will            develop.        -   Inflorescence size.—Diameter: Grown as a disbud type, about            10.4 cm and grown as a spray-type, about 7.6 cm. Depth            (height): Grown as a disbud type, about 3.9 cm and grown as            a spray-type, about 2.8 cm. Disc diameter: If present, about            5 mm.        -   Receptacles.—Height: About 4 mm. Diameter: About 9 mm.            Shape: Flattened globular. Color: Close to 145C.        -   Inflorescence buds.—Height: About 1.8 cm. Diameter: About            1.5 cm. Shape: Broadly ovate to roughly globular. Texture            and luster: Distally, smooth and glabrous; proximally,            moderately pubescent; slightly glossy. Color: Close to 138A            to 138C; immature ray florets, close to 3A and 1A.        -   Ray florets.—Quantity and arrangement: About 240 arranged in            about eight whorls. Length: About 4.1 cm; varying between            2.3 cm and 5.1 cm. Width: About 1 cm; varying between 0.2 cm            and 1.3 cm. Shape: Oblanceolate; moderately concave and            moderately carinate. Apex: Bluntly and broadly acute to            obtuse. Base: Attenuate. Margin: Entire; not undulate.            Aspect: Initially upright to about 90° from vertical.            Texture and luster, upper surface: Smooth, glabrous;            moderately velvety; matte. Texture and luster, lower            surface: Smooth, glabrous; slightly velvety; slightly            glossy. Color: When opening, upper surface: Close to 9A.            When opening, lower surface: Close to 7B. Fully opened,            upper surface: Close to 6A; venation, close to 6A; color            does not change with development. Fully opened, lower            surface: Close to 6B; venation, close to 6B; color does not            change with development.        -   Disc florets.—Quantity and arrangement: If present, about            one to four massed at the center of the receptacle; disc            florets inconspicuous. Length: About 6 mm. Diameter: About            1 mm. Shape: Lower 85% fused into a tube; upper 15% free.            Apex: Narrowly acute. Margin, distally: Entire. Texture and            luster, inner and outer surfaces: Smooth, glabrous; glossy.            Color, when opening, inner and outer surfaces: Close to            154D; towards the apex, close to 150A to 150B and towards            the base, close to 145D. Color, fully opened, inner and            outer surfaces: Close to 154D; towards the apex, close to            150A to 150B and towards the base, close to 145D.        -   Involucral bracts.—Quantity and arrangement: About 56            arranged in three whorls. Length: About 1.1 cm. Width: About            4 mm. Shape: Narrowly ovate to ovate. Apex: Obtuse. Base:            Cuneate. Margin: Entire. Texture and luster, upper surface:            Smooth, glabrous; glossy. Texture and luster, lower surface:            Moderately to densely pubescent; matte. Color, upper            surface: Close to 146B; margins, translucent and close to            196C to 196D and N199A. Color, lower surface: Close to 137C;            margins, translucent and close to 196C to 196D and N199A.        -   Peduncles.—Length, terminal peduncle: About 3.9 cm.            Diameter, terminal peduncle: About 4.5 mm. Length, third            peduncle (when grown as a spray-type): About 8 cm. Diameter,            third peduncle (when grown as a spray-type): About 3 mm.            Strength: Strong. Aspect, terminal peduncle: Mostly upright.            Aspect, third peduncle (when grown as a spray-type): About            35° from the flowering stem axis. Texture and luster:            Densely pubescent; moderately glossy. Color: Close to 138A.        -   Reproductive organs.—Androecium: Present on disc florets            only. Quantity: About five per floret. Filament length:            About 1.5 mm. Filament color: Close to 145D. Anther size:            About 0.5 mm by 3 mm. Anther shape: Narrowly oblong. Anther            color: Close to 14A. Pollen amount: Moderate. Pollen color:            Close to 17A. Gynoecium: Present on both ray and disc            florets. Quantity: One per ray floret. Pistil length: About            4.5 mm. Style length: About 4 mm. Style color: Close to            150C. Stigma diameter: About 1 mm. Stigma shape: Cleft,            decurrent. Stigma color: Close to 153C. Ovary color: Close            to 145D.        -   Seeds and fruits.—To date, seed and fruit production have            not been observed on plants of the new Chrysanthemum.-   Pathogen & pest resistance: Plants of the new Chrysanthemum have    been observed to be relatively resistant to Fusarium oxysporum f.    sp. chrysanthemi and Puccinia horiana strain PhNL1. To date, plants    of the new Chrysanthemum have not been observed to be resistant to    pests and other pathogens common to plants grown under commercial    conditions.-   Temperature tolerance: Plants of the new Chrysanthemum have been    observed to tolerate temperatures ranging from about −12° C. to    35° C. and to be suitable for USDA Hardiness Zones 8 to 10.

It is claimed:
 1. A new and distinct Chrysanthemum plant named‘DLFSOLE2’ as illustrated and described.